针对“垃圾短信”中有害关键字的4种常见伪装方法,提出了“垃圾短信”监控的中文多模式模糊匹配算法.首先进行关键字和检测短信的模糊化预处理,然后运用WM算法进行中文信息的初步匹配,最后进行多模式匹配.实验证明,该算法在执行效率等方面均优于原有系统中的算法. Aiming at the four kinds of common masquerading methods of harmful keywords in “Spam”, this paper proposes a Chinese multi-pattern fuzzy matching algorithm of “Spam” monitoring.Firstly, the fuzzy preprocessing of the key words and the detected message are carried out, WM algorithm for the initial matching of Chinese information, and finally for multi-pattern matching.Experiments show that the proposed algorithm is superior to the original system in terms of execution efficiency and so on.